Dynamic Blocks corrupted after a while of usage in ZWCAD

[cad_tutee]

For context, I am using ZWCAD 2024 currently and I've created a dynamic block to be used in ZWCAD as an alternative to Multi-leaders to be an easier method to be able to DATAEXTRACT because my ZWCAD does not allow data extraction of MTEXT and MLEADERS unlike AutoCAD. I'd made the Dynamic Block to work exactly like a multileader would using, along with other parameters, Multiple Lookup Tables for rotating, extending and flipping the leader without affecting the order of text. That means they had to be created in licensed AutoCAD because ZWCAD's counterpart Flexiblocks do not have the LookUp parameter yet. The blocks worked normally as intended for a while on regular usage(working on, closing and reopening the file multiple times), but they stopped behaving like a dynamic block altogether suddenly after a few days on reopening the file. The blocks now seem to have been assigned different names by the software (*U15, *U16, and so) from its original name(m-Drawing M-Leader Block).
I have attached the files below:
Issue.dwg - File with the problematic Dynamic Blocks
MultileaderDynamicBlock.dwg - File with the original Dynamic Block
 

I have noticed this behavior with some other dynamic blocks in the files that I receive from consultants once in a while. Is this because of using dynamic blocks created in AutoCAD in ZWCAD? If yeah, why do they work perfectly for a while only to stop working all of a sudden? Is there a way to reverse this? I'd tried to replace the corrupted blocks with the original dynamic block reference, which would have itself been sort of a tedious task as there were so many instances in the drawing, but ZWCAD no longer recognizes the corrupted blocks as "blocks".

ChatGPT and other LLMs are of limited help, so please help a brother understand and, if possible maybe, correct this issue. Or is there an alternative to this?

Cheers!

Issue.dwg MulltileaderDynamicBlock.dwg