Thank you Tom for your comments. After experimenting half the night it seems that FCP 10.7 on my computer has trouble handling and transcoding large video files. With smaller files FCP seems to perform OK. 10.7 did not integrate well with IOS and did introduce instability. This has now passed and I am unclear why things improved. Maybe background functions interfering with the transcoding process? I did not have any of the troubles with 10.6. As a doco film maker I deal in very large Log and 'normal' video files. I ran Etrecheck with no major issues identified. Minor ones listed below:
EtreCheckPro version: 6.8.3 (68032)
Report generated: 2023-12-06 10:58:04
Download EtreCheckPro from https://etrecheck.com
Runtime: 3:38
Performance: Good
Problem: Apps are crashing
Description:
FCP 10.7 cashes all the time upon edit activity on my 2017 iMac runnin
g Ventura 13.6.1
Major Issues: None
Minor Issues:
These issues do not need immediate attention but they may indicate future problems or opportunities for improvement.
System extensions installed - This computer has system extensions installed. System extensions can be difficult to uninstall.
Apps crashing - There have been numerous app crashes.
Clean up - There are orphan files that could be removed.
Unsigned files - There are unsigned software files installed. These files could be old, incompatible, and cause problems. They should be reviewed.
Kernel extensions present - This computer has kernel extensions that may not work in the future.
Hardware Information:
iMac (Retina 4K, 21.5-inch, 2017)
Status: Supported
iMac Model: iMac18,2
3.6 GHz Quad-Core Intel Core i7 (i7-7700) CPU: 4-core
16 GB RAM - Upgradeable by an Apple Authorized Service Provider
BANK 0/DIMM0 - 8 GB DDR4 SO-DIMM 2400
BANK 1/DIMM0 - 8 GB DDR4 SO-DIMM 2400
Video Information:
Radeon Pro 555 - VRAM: 2 GB
iMac (built-in) 3360 x 1890
I will wait a few days to see if Apple sends out a patch to improve FCP 10.7. If not, I may revert to 10.6 as no major library will be impacted. Thank you agin for your great support, Tom.
Regards, Mike